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High Compression Pistons

 
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ghf4986(at)gmail.com
Guest
PostPosted: Fri Jul 26, 2013 1:11 pm    Post subject: High Compression Pistons Reply with quote
I had them put in my rebuilt engine by Mississippi South, a Rotax
engine rebuilder. I really like the power I have. With a Prince
power tip I can fly at 155 mph true at about 5000 rpms in my XP.

The only comparison that I can make is last year, Austin Moses and I
went flying (he has an 80 HP XP with a Prince power tip), his comment
was that I could climb out a lot faster than he could. My plane is
quite a bit heavier than his and I throttled back a little.

I have about 120 hrs on the engine with no problems.

Dennis
N375CM

Sent from an IPad

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mortweaver(at)sbcglobal.n
Guest
PostPosted: Sat Jul 27, 2013 3:06 am    Post subject: High Compression Pistons Reply with quote
Dennis -
What is the lowest octane fuel you are able to run with the high compression pistons and fuel burn rate at 5,000 rpm cruise?
Dave Weaver N912GR

From: Dennis Adams <ghf4986(at)gmail.com>
To: pulsar-list(at)matronics.com
Sent: Friday, July 26, 2013 4:09 PM
Subject: High Compression Pistons


--> Pulsar-List message posted by: Dennis Adams <ghf4986(at)gmail.com (ghf4986(at)gmail.com)>

I had them put in my rebuilt engine by Mississippi South, a Rotax
engine rebuilder. I really like the power I have. With a Prince
power tip I can fly at 155 mph true at about 5000 rpms in my XP.

The only comparison that I can make is last year, Austin Moses and I
went flying (he has an 80 HP XP with a Prince power tip), his comment
was that I could climb out a lot faster than he could. My plane is
quite a bit heavier than his and I throttled back a little.

I have about 120 hrs on the engine with no problems.

Dennis
N375CM

Sent p; nbsp; -Matt

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ghf4986(at)gmail.com
Guest
PostPosted: Sat Jul 27, 2013 4:36 am    Post subject: High Compression Pistons Reply with quote
Dave,
I usually run 91 octane no alcohol auto fuel,  and 100 LL when I have to usually going cross country.  I am at 4856 feet msl when I take off however so that 91 octane seems just fine.


Dennis

Sent from an IPad 

On Jul 27, 2013, at 5:09 AM, David Weaver <mortweaver(at)sbcglobal.net (mortweaver(at)sbcglobal.net)> wrote:
Dennis -
What is the lowest octane fuel you are able to run with the high compression pistons and fuel burn rate at 5,000 rpm cruise?
Dave Weaver N912GR



From: Dennis Adams <ghf4986(at)gmail.com (ghf4986(at)gmail.com)>
To: pulsar-list(at)matronics.com (pulsar-list(at)matronics.com)
Sent: Friday, July 26, 2013 4:09 PM
Subject: Pulsar-List: High Compression Pistons


--> Pulsar-List message posted by: Dennis Adams <ghf4986(at)gmail.com (ghf4986(at)gmail.com)>

I had them put in my rebuilt engine by Mississippi South, a Rotax
engine rebuilder.  I really like the power I have.  With a Prince
power tip I can fly at 155 mph true at about 5000 rpms in my XP.

The only comparison that I can make is last year, Austin Moses and I
went flying (he has an 80 HP XP with a Prince power tip), his comment
was that I could climb out a lot faster than he could.  My plane is
quite a bit heavier than his and I throttled back a little.

I have about 120 hrs on the engine with no problems.

Dennis
N375CM

Sent p;     nbsp;               -Matt




[quote]

ttp://www.matronics.com/Navigator?Pulsar-List
ics.com
.matronics.com/contribution

[b]

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ccoulter(at)wavecable.com
Guest
PostPosted: Sat Jul 27, 2013 7:00 am    Post subject: High Compression Pistons Reply with quote
Dave

I use 87 in my 912 UL but the 912 ULS or the high
compression pistons in the 912 should use 91.

Clarke

On Sat, 27 Jul 2013 04:04:07 -0700 (PDT)
David Weaver <mortweaver(at)sbcglobal.net> wrote:
Quote:
Dennis -
What is the lowest octane fuel you are able to run with
the high compression pistons and fuel burn rate at 5,000
rpm cruise?
Dave Weaver N912GR


________________________________
From: Dennis Adams <ghf4986(at)gmail.com>
To: pulsar-list(at)matronics.com
Sent: Friday, July 26, 2013 4:09 PM
Subject: High Compression Pistons



<ghf4986(at)gmail.com>

I had them put in my rebuilt engine by Mississippi
South, a Rotax
engine rebuilder.  I really like the power I have.  With
a Prince
power tip I can fly at 155 mph true at about 5000 rpms
in my XP.

The only comparison that I can make is last year, Austin
Moses and I
went flying (he has an 80 HP XP with a Prince power
tip), his comment
was that I could climb out a lot faster than he could. 
My plane is
quite a bit heavier than his and I throttled back a
little.

I have about 120 hrs on the engine with n=             
                -Matt Dralle=========


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Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Pulsar-List
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